Pneumatic sweeper.



w. 1 LSTEP.. PNEUMTIU SWEEPEB. `l 221.1011103 111.311 111.16. 190s. v'

Patented Mar. 16,1909.

2 SHEETS-SHEET 1.

auen/Coz witnesses W. P. LEISTER.

PNEUMATIG SWBEBEB. nrmoulol HLBD 1111.10. 190s.

Patented 11u16; 1909.

Q SHEETS-SHEET 2.

y/g 33a.

Il' .Ill

i. 'Kl l All' 3 :3a 2g S11/newton ed a flexible tube section 26 secured at its ingleadin to the intake opposite ends to rigid rings or bands 27 and 28 respectively. The band 27 is mounted around the pipe 23 as illustrated clearly in Fig. 6, and between it and an extending ilange 29 on the end of said pipe is arranged a coiled spring 30. Said spring normally retracts said flexible tube section 26 partially over the end of the pipe leaving a portion of said tube projecting beyond said pipe. The ring 28 on said projecting end carries flat spring arms 31 adapted to engage the spindle carrying rail of a spinning machine and hold the flexible tube a ainst said rail as the machine is moved a ong whereby the lint is sucked through said branch pipes into the dust receptacle. 1t is the resent custom to brush ofi this lint, which co ects very thickly on said rail, with a small broom or flap from eight to twelve times a day. The great convenience and saving incident to the use of my machine will therefore be readily understood.

The exhaust pipe 13 of the fan leads to branch chutes 32 and 33 arranged at the rear end of the sweeper and' extending downwardly and toward eacli side as shown in Figs. 5 and 7. Valves 328L and 33a are arranged in said chutes whereby the blast may be directed to either side of the machine. By this means the dust and lint may be blown from under the machines into the next aisle as the sweeper moves along an aisle.

, pipe 34 leads from near the juncture of the exhaust chutes and runs along below the platform oi the sweeper to the lower flared end 210i the suction pipe 15 where it branches into two pipes 35 which extend around opposite sides of said flared end and terminate in front and below the open end of said flared portion. The branch pipes 35 are perforated on their under surfaces, as at 36. The blast delivered through said perforations and ends of said branch pipes is directed upon the floor at an angle toward the suction pipe and serves to loosen thev litter and dust and blow it under said pipe enabling said material to be more readily taken up by said suction pipe.

- The operation of the sweeper will be readily understood rom the foregoing description. The fanof course, creates the suction to draw the litter and refuse from thefiloor ,Y and the spindle carrying rails of the spinning 55 machines ,into thev dust l receptacle through the main and branch suction pipes. The wire roller arranged at the u per end of said main suction pipedelivers t e refuse on the bottom of said dust receptacle land prevents it froml clogging the screen covering the openipe of the fan.

` Said fan a so creates the b ast which blows the lint from below the machines and loosens it ltrom the floor and directs it under the open end of the main suction pipe; These various sweeper, and cut off va operations take place while the sweeper is .the combination, with a dust receptacle and a fan, of a suction pipe leading from said receptacle, a ilexible tube' on the end of said pipe, and means on said tube for attaching it to the spindle-carrying rail of a spinning machine.

3. In asweeper of the character described, the combination, with a dust receptacle and a fan, of a suction pipe leading from said receptacle, a flexible tube on the end of said pipe, a rigid ring on the outer end of said tubeand resilient arms secured to said ring for the purpose specified.

. 4. In a sweeper of the character described,

the combination, with a dust receptacle and a fan, of a suctionpi e leading from said receptacle, a flexible tu e on the end of said pipe, rigid rings on the ends of said tube,a coiled spring arranged between said pipe and tube and abutting against the ring on the innerv end of said tube and also against a flange on the outer end of said pipe, and means carried by the other iing on said tube for attaching it to the spindle-carrying rail of a spinning machine.

5. 1n a sweeper of the character described, the combination, with a dust receptacle and va fan, of'a suction pipe leading from said receptacle, a ilexible tube on the end of said pipe, rigid rings on the ends ofsaid tube, a coiled spring arranged between said pipe and tube and abutting against the ring on the inner end of said tube and also against a ilange on the outer end of said pipe, and resilient arms secured tothe other ring on said tube for tlie purpose s eciied.

6. In a sweeper of the c aracter described, the combination, with a dust receptacle and a fan, of a suction pipe adapted to take up refuse from the floor and deliver it to said receptacle, branch exhaust .chutes communieating with the exhaust pipe from-said l'an and extending to 'opposite sides of the ves in said chutes.

7. In a sweeper of the character described, the combination, with a dust receptacle and a fan, of a suction pipe adapted to take up y refuse fromthe floor and deliver it to said receptacle, the rear edge of said suction 'pipe extending lower than its front edge, and an exhaust pipe leading from the i'an to the lower end of said suction pipe' wheie it separates into -two branches which extend around at either side of said suction pipe and sov terminate in front of saidsuction pipe, said branchA exhaust pipes having perforations in the portions thereof arranged behind said suction pipe ada ted tof directV blasts at an angle upon the oor and toward the open end of said suction pi e.

8. In a sweeper of t e character described, the combination, With a dust receptacle and a fan, of a suction pipe adapted to take up refuse from the loor and deliver it to said receptacle, branch exhaust chutes communieating With the exhaust pipe from said fau Witnesses:

and extending to opposite sides ofthe sweeper,

an exhaust pipe opening into said exhaust chutes at the )uncture of the two branches 15 In testimony'whereof, I aix my signature, in presence of two Witnesses.

WILLIAM P; LEISTER.

L,. I. GREGORY,

MCBRAYER. Y 

